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Finding the Fourth Proportional to 102,212.17, 140,972.76 and 66,413.81

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Solution

The fourth proportional to 102,212.17, 140,972.76 and 66,413.81 is: 91,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,212.17 : 140,972.76 = 66,413.81 : x
  2. Step 2: Convert to fraction form
    102,212.17/140,972.76 = 66,413.81/x
  3. Step 3: Cross multiply
    102,212.17x = 140,972.76 × 66,413.81
  4. Step 4: Simplify right side
    102,212.17x = 9,362,538,450.25
  5. Step 5: Solve for x
    x = 9,362,538,450.25/102,212.17
  6. Step 6: Final answer
    x = 91,599.06

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